hopdoc

One factor not taken into account - shooter's think they can shoot more accurately at a longer distance than they actually can on a regular basis.
They do it once and that is what they can do.

A 338 Lapua has just as many trajectory problems as other guns and more so further out.

NE450No2
The 325WSM as well as several cartridges, have been introduced mearly to increase new rifle sales.

You are 100% correct - that's all the WSM, WSSM's were for.